Dec 04 23:29:01.016 INFO checking WenjunHuang/SledMultiThreadTest against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 23:29:01.016 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 23:29:01.388 INFO [stdout] 6b1cbb40d9b4cf98723917b1cafe6e4a52eb9c666b03a70054d0588d8565c31f
Dec 04 23:29:01.397 INFO running `"docker" "start" "-a" "6b1cbb40d9b4cf98723917b1cafe6e4a52eb9c666b03a70054d0588d8565c31f"`
Dec 04 23:29:02.791 INFO [stderr] usermod: no changes
Dec 04 23:29:03.059 INFO [stderr]     Checking crossbeam-utils v0.5.0
Dec 04 23:29:03.059 INFO [stderr]     Checking rayon v1.0.3
Dec 04 23:29:04.249 INFO [stderr]     Checking crossbeam-epoch v0.6.0
Dec 04 23:29:05.227 INFO [stderr]     Checking pagetable v0.1.0
Dec 04 23:29:08.545 INFO [stderr]     Checking pagecache v0.7.2
Dec 04 23:29:13.367 INFO [stderr]     Checking sled v0.16.2
Dec 04 23:29:17.274 INFO [stderr]     Checking SledMultithreadTest v0.1.0 (/source)
Dec 04 23:29:19.935 INFO [stderr] warning: unused import: `SubCommand`
Dec 04 23:29:19.935 INFO [stderr]  --> src/main.rs:4:22
Dec 04 23:29:19.935 INFO [stderr]   |
Dec 04 23:29:19.935 INFO [stderr] 4 | use clap::{App, Arg, SubCommand};
Dec 04 23:29:19.935 INFO [stderr]   |                      ^^^^^^^^^^
Dec 04 23:29:19.935 INFO [stderr]   |
Dec 04 23:29:19.935 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 23:29:19.935 INFO [stderr] 
Dec 04 23:29:20.093 INFO [stderr] warning: unused variable: `prefix`
Dec 04 23:29:20.093 INFO [stderr]   --> src/main.rs:62:31
Dec 04 23:29:20.093 INFO [stderr]    |
Dec 04 23:29:20.093 INFO [stderr] 62 | fn check_write(db: Arc<Tree>, prefix: i32) {
Dec 04 23:29:20.093 INFO [stderr]    |                               ^^^^^^ help: consider using `_prefix` instead
Dec 04 23:29:20.093 INFO [stderr]    |
Dec 04 23:29:20.093 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 23:29:20.093 INFO [stderr] 
Dec 04 23:29:20.093 INFO [stderr] warning: unused variable: `prefix`
Dec 04 23:29:20.093 INFO [stderr]   --> src/main.rs:89:30
Dec 04 23:29:20.093 INFO [stderr]    |
Dec 04 23:29:20.093 INFO [stderr] 89 | fn check_read(db: Arc<Tree>, prefix: i32) {
Dec 04 23:29:20.093 INFO [stderr]    |                              ^^^^^^ help: consider using `_prefix` instead
Dec 04 23:29:20.093 INFO [stderr] 
Dec 04 23:29:20.127 INFO [stderr] warning: unused import: `SubCommand`
Dec 04 23:29:20.127 INFO [stderr]  --> src/main.rs:4:22
Dec 04 23:29:20.127 INFO [stderr]   |
Dec 04 23:29:20.127 INFO [stderr] 4 | use clap::{App, Arg, SubCommand};
Dec 04 23:29:20.127 INFO [stderr]   |                      ^^^^^^^^^^
Dec 04 23:29:20.127 INFO [stderr]   |
Dec 04 23:29:20.127 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 23:29:20.127 INFO [stderr] 
Dec 04 23:29:20.135 INFO [stderr] warning: crate `SledMultithreadTest` should have a snake case name such as `sled_multithread_test`
Dec 04 23:29:20.135 INFO [stderr]   |
Dec 04 23:29:20.135 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 04 23:29:20.135 INFO [stderr] 
Dec 04 23:29:20.243 INFO [stderr] warning: unused variable: `prefix`
Dec 04 23:29:20.243 INFO [stderr]   --> src/main.rs:62:31
Dec 04 23:29:20.243 INFO [stderr]    |
Dec 04 23:29:20.243 INFO [stderr] 62 | fn check_write(db: Arc<Tree>, prefix: i32) {
Dec 04 23:29:20.243 INFO [stderr]    |                               ^^^^^^ help: consider using `_prefix` instead
Dec 04 23:29:20.243 INFO [stderr]    |
Dec 04 23:29:20.243 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 23:29:20.243 INFO [stderr] 
Dec 04 23:29:20.243 INFO [stderr] warning: unused variable: `prefix`
Dec 04 23:29:20.243 INFO [stderr]   --> src/main.rs:89:30
Dec 04 23:29:20.243 INFO [stderr]    |
Dec 04 23:29:20.243 INFO [stderr] 89 | fn check_read(db: Arc<Tree>, prefix: i32) {
Dec 04 23:29:20.243 INFO [stderr]    |                              ^^^^^^ help: consider using `_prefix` instead
Dec 04 23:29:20.243 INFO [stderr] 
Dec 04 23:29:20.268 INFO [stderr] warning: crate `SledMultithreadTest` should have a snake case name such as `sled_multithread_test`
Dec 04 23:29:20.268 INFO [stderr]   |
Dec 04 23:29:20.268 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 04 23:29:20.268 INFO [stderr] 
Dec 04 23:29:20.328 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.50s
Dec 04 23:29:20.335 INFO [stderr] su: No module specific data is present
Dec 04 23:29:21.036 INFO running `"docker" "inspect" "6b1cbb40d9b4cf98723917b1cafe6e4a52eb9c666b03a70054d0588d8565c31f"`
Dec 04 23:29:21.285 INFO running `"docker" "rm" "-f" "6b1cbb40d9b4cf98723917b1cafe6e4a52eb9c666b03a70054d0588d8565c31f"`
Dec 04 23:29:21.677 INFO [stdout] 6b1cbb40d9b4cf98723917b1cafe6e4a52eb9c666b03a70054d0588d8565c31f